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ea98b29a PA |
1 | Kernel driver scpi-hwmon |
2 | ======================== | |
3 | ||
4 | Supported chips: | |
5 | * Chips based on ARM System Control Processor Interface | |
6 | Addresses scanned: - | |
7 | Datasheet: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0922b/index.html | |
8 | ||
9 | Author: Punit Agrawal <punit.agrawal@arm.com> | |
10 | ||
11 | Description | |
12 | ----------- | |
13 | ||
14 | This driver supports hardware monitoring for SoC's based on the ARM | |
15 | System Control Processor (SCP) implementing the System Control | |
16 | Processor Interface (SCPI). The following sensor types are supported | |
17 | by the SCP - | |
18 | ||
19 | * temperature | |
20 | * voltage | |
21 | * current | |
22 | * power | |
23 | ||
24 | The SCP interface provides an API to query the available sensors and | |
25 | their values which are then exported to userspace by this driver. | |
26 | ||
27 | Usage Notes | |
28 | ----------- | |
29 | ||
30 | The driver relies on device tree node to indicate the presence of SCPI | |
31 | support in the kernel. See | |
32 | Documentation/devicetree/bindings/arm/arm,scpi.txt for details of the | |
33 | devicetree node. |